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Expired Canadian patentCanada

Cutting unit stabilizing mechanism

CA 2250976 C · Owner: Anderson, Donald Theodore Michael · Inventors: Anderson, Donald Theodore Michael; O'Toole, Frank Kenneth

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A linkage for a reel mower cutting unit including upper and lower stop members which abut a yoke for restricting the movement of the yoke and cutting unit when the cutting, unit is raised to a transport position.

Read the whole patent

Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed November 6, 1998 and granted June 11, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 6, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 6, 1998
GrantedJune 11, 2002
Term endedNovember 6, 2018
Patent numberCA 2250976 C
Classification (IPC)A01D34/62 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedNov 6, 1998Patent grantedJune 11, 2002Term endedNov 6, 2018

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.